Light field display device and method
First Claim
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1. A light field display device comprising an array of light field display elements, each display element having a position on a display surface, each display element comprising:
- (a) a beam generator for generating an output beam of light;
(b) a scanner for scanning the beam across a two-dimensional angular field;
(c) a radiance modulator for modulating a radiance of the beam over time in accordance with a specified radiance value corresponding to the position on the display surface and an instantaneous direction of the beam within the angular field; and
(d) a focus modulator for modulating a focus of the beam over time.
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Abstract
The present invention provides a light field display device (300) comprising an array of light field display elements (310) populating a display surface, each display element (310) comprising: a beam generator (522) for generating an output beam of light; a radiance modulator (524) for modulating the radiance of the beam over time; a focus modulator (530) for modulating the focus of the beam over time; and a scanner (504, 506) for scanning the beam across a two-dimensional angular field.
32 Citations
18 Claims
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1. A light field display device comprising an array of light field display elements, each display element having a position on a display surface, each display element comprising:
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(a) a beam generator for generating an output beam of light; (b) a scanner for scanning the beam across a two-dimensional angular field; (c) a radiance modulator for modulating a radiance of the beam over time in accordance with a specified radiance value corresponding to the position on the display surface and an instantaneous direction of the beam within the angular field; and (d) a focus modulator for modulating a focus of the beam over time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for displaying a light field, the method comprising, for each of a set of positions on a display-surface, the steps of:
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(a) generating an output beam of light; (b) scanning the beam across a two-dimensional angular field; (c) modulating a radiance of the beam over time in accordance with a specified radiance value corresponding to the position on the display surface and an instantaneous direction of the beam within the angular field; and (d) modulating a focus of the beam over time. - View Dependent Claims (15, 16, 17, 18)
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Specification